Home / 15,725.09-21,700.58-9,437.46

Finding the Fourth Proportional to 15,725.09, 21,700.58 and 9,437.46

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Solution

The fourth proportional to 15,725.09, 21,700.58 and 9,437.46 is: 13,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.09 : 21,700.58 = 9,437.46 : x
  2. Step 2: Convert to fraction form
    15,725.09/21,700.58 = 9,437.46/x
  3. Step 3: Cross multiply
    15,725.09x = 21,700.58 × 9,437.46
  4. Step 4: Simplify right side
    15,725.09x = 204,798,308.54
  5. Step 5: Solve for x
    x = 204,798,308.54/15,725.09
  6. Step 6: Final answer
    x = 13,023.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.